thousands took streets to the main street of mexico city to protest. some of the signs read "don't tell our oil." our chief international correspondent is back from mexico, michelle caruso-cabrera. she has more. >> hey there, tyler. mexico has lots and lots of oil, not enough money to drill for it. consider this. in the u.s.-controlled part of the gulf of mexico, more than 300,000 barrels of oil are brought up every single day from the deep waters. in the mexican-controlled area, zero. that's why this country's new president is trying to change things. there's only one oil and gas company in mexico. hemex, it's been that way since 1938. the country kicked out all foreign oil countries and the government took control of production. for decades mexico is one of the -- but not anymore. pemex's oil production is declining. down to only 2.5 million barrels per day now. >> we need to evive. carlos morales is head of exploration for pemex. he says the key to a turnaround actioning the oil in the deep waters off the gulf of the coast of mexico. just residentin